added current definition of the Universal Acceptance, added bit where the issue is not limited to just browsers/domains, added the way to get involved in the effort.
Universal Acceptance refers to the occurrence of users experiencing browser and email bugs when trying to use new gTLDs. Operators of new gTLDs and more visibly all IDN TLDs (gTLDs and ccTLDs) are seeing unnaturally limited demand for names in the zones and this has presented a challenge to the goals of the new gTLD program of user choice, user confidence and name space competition. Domain names in a TLD must be useable in applications regardless of the written script, length or newness of the TLD.<ref>[https://www.icann.org/resources/pages/universal-acceptance-2012-02-25-en Universal Acceptance landing page at ICANN]</ref> The four main shifts spurring the need for Universal Acceptance:
* Longer TLD Names: TLDs with names longer than four characters, such as MUSEUM.
As the Internet evolved to be more personal, targeted and global, these assumptions are no longer valid. But limitations based on the old assumptions linger and now are preventing a larger and ever growing group of users from accessing the entire expanse of the Internet. In some instances, Internet users trying to use the newly delegated generic Top Level Domain (gTLDs), whose names may be many characters long and/or in non-Latin scripts, can experience "bugs" or the inability to access/register the sites.
This problem must be solved, and Universal Acceptance realized, in order to achieve a truly global, scalable Internet. It will be considered complete when any person can register and use a domain name in any top-level domain in widely distributed web browsers, email clients, in setting up accounts for Internet services and other services.
=== References ===